Liv and Emma, best friends since childhood, both get engaged and start planning their respective weddings. At the top of the list for each of them is the venue - The Plaza Hotel in New York. A clerical error causes the the wedding day to be double booked, both brides to be are now due to be married on the same day. Their friendship is pushed to the limit as neither is prepared to find an alternative venue, the usual friends find them selves embracing their inner Bridezilla.